| Vendor | Spec | Unit | Price | Currency | Date |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 143.53 | USD | 20250828 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 143.44 | USD | 20250827 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 143.28 | USD | 20250826 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 143.34 | USD | 20250825 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 143.02 | USD | 20250823 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 143.02 | USD | 20250822 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 143.08 | USD | 20250821 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 142.89 | USD | 20250820 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 142.94 | USD | 20250819 |
| Shandong Qiangsen Chemical Co., Ltd. | 37% | MT | 143.01 | USD | 20250818 |